South Korean memory semiconductor supplier SK Hynix said earlier this week that it would begin mass production and sampling of 3D flash memory chips that utilises vertical-stacked-array-transistor (VSAT) technology, according to a report by the Korea Times.

Flash chip, which is a type of non-volatile memory that can be erased and reprogrammed, is ideal for data-intensive devices that constantly connect to the Internet. It has a simple cell structure that allows for higher memory capacity, density and durability.
"As far as I know, all major semiconductor companies are investing more in the development of 3D flash memory chips. SK Hynix is trying hard to mass produce them as early as possible," said CTO Park Sung-wook. Samsung Electronics is reportedly planning to produce 3D flash memory chips in its plant in Xi'an, China upon completion of the facility.